Sound studio



'me mvislgm oct. 4, 1932.

S. S. SUGAR SOUND STUDIO Filed Nov. 28, 1951 vgl"soLoMoNs,snGARorNEW-voRx, N YQ, AssIGNoR or NINE-TWENTIETRS 'ro'rrrrr iSUGAR, :russie sUGAR, AND GERTRUDE su-GAR, ALL or. NRW YORRN. X,

Patented Oct. 4, 1932 This invention relates to studios or compartments:intended to be used for picking up sound impulses and translating them'into energy'lfor recording or for -radio broadcasting purposes. f i"A'Instudios of this character itis impor- Itan't"`that the soundimpulses, as heard by the performers within the room, should'possessnaural naturalness and must not `be blurred or'fconfused by improperreverberation. It is common practice in such studios tol provide meanswhich will absorb all sound impulses which may be reflected back to thepick-up device.- AThe means, however, at present employed so completelyabsorbs reiiected sound waves'that an unnatural effect is producedwithin the studio and this unnaturalness is a moreor less annoying ordisturbing agent tothe performers. j

One object of this invention is toprovide a studio of the characterdescribed wherein means are providedl to render the sounds createdwithin the studio, with aural naturalness to the performers. 'l fAnother object of this invention is to provide' a Vstudio 'ofthecharacter described wherein means are' provided to give properamplification to the sound impulses 'as they impinge on the l'pick-updevice. f y

I"Another object of'this invention is to provide, in a studio of thecharacter described, upon the floor, ceiling and certain walls ofthestudio, means yfor absorbing certain sound waves toprevent a tooprolonged reverberation. I i A further yobject is to provide a studio asdescribed, Whe-rein the direct sound Waves o-rji'mpulses are suitablyamplified to the pick-upl device and means are provided to impartresonance to the said sound waves.

A further object is to provide a studio of the character describedwherein ample provision is made for Ventilation land the 'exclusion ofextraneous noises. A, y. These objects are attained by the meansillustrated in the accompanying drawing,

which form a part of this application and in which: s

Figure 1 is a longitudinal section, on line Application mea' advertiser28,1931. yseria; Npjsmca l-l'of Figure 2, of `a studio embodying theprinciples ofthis invention. 1 -Figure2 vis a plan .view of samejf`-=..l."

.line

Figure 4 is a detail view, in section; of a Ventilatingy outlet intheceiling of the studio. IFigure `-51is detail plan showingafsection of awall of the studio having a Ventilating corridor around the walls 'ofsaid studio. i

Figure 6 is a longitudinal 'section of a studio showing a slightmodication which will be hereinafter explained.' fe f: Figure 7 is aplan view of same. v"All the illustrations are diagramatic inasmuch asno lattempt is made to show any detail of'construction.. x l Referringin more detail lvto, the parts, 1 designates a room in which thesurfaceof the floor and ceiling, 2 and 3 respectively, are I a smooth,approximately parabolic surface 7.

The floor 8 of said recess is alsovof rigid construction and is finishedWith a smooth soundreiecting surface f ci 'ff/ivm .Following thecontourvof said recess, but arranged a fewr inches therefrom is a shell9 of suitable wood construction, which, with the Wood floor 10, forms aperformersnich 11; the said shell and floor are capable ofsympatheticvibrations. ,a

The floor 10 of said niche 11 is raised,a few inches, above the rigidfloor 8 to form aniairspacevor chamber. 12 which, with the air space 13behind the shell 9, forms va reso.- nating chamber, open at the ends 14and'l.

A pick-up device 16is placed at the approximate focal point to theparabolic shell.

The said niche 11, which will hereinafter be termed a sound-niche is notlimited to the size, of .the end of the studio, but may ybe upon thepickup device Will pass on to vthe sound absorbing surfaces and noreflected sound Waves other than those from the soundniche Will strikethe pick-up. W

The resonance imparted to the sound Waves 'or' impulses Will give agreater degree ofnaturalness than has heretofore been possible.

The pick-up device may be rigidly mounted upon a rigid base block as l7and the pedestal portion may be incased with sound absorbingmaterial. v

1 'Openings 18, providing means of ingress and egress vare provided andare shielded against sound ingress by means of partitions or Walls 19and 20 which are constructed of or are covered with a sound absorbingmaterial and function as baflles to prevent the ingress of extraneoussounds and the egress of studio sounds.

An air outlet 21, (Figure 4), may be provided in the ceiling Which leadsto a chamber 22 having an outlet 23, and series of baflles 24 and 25interposed between the outlets 2l and 23. The Walls of said chamber andoutlet passage 21 and said baflles 24 and 25 areconstructed of orcovered With suitable sound absorbing material. 1 v Y A similar chamberhaving baffles properly insulated against sound reflection is providedat the air inlets which maybe located at either side of the sound-nicheasat 26 and 27, shown in Figure 3. ..1

Other provision for ventilation may .be provided by means of a corridor28, (Fig ure 5), Which may parallel one or more sides of the studio.V 7

The said corridor leads from any point outside tliestudio to the studioentrance opening 18, and interposed between these tWo points are seriesof staggered partitions 29 and 30. The Walls of the corridor and all ofthe baffles are constructed of or are covered with a-sound absorbingmaterial. AVWindoW 31 opening to the outer atmosphere may be provided inthe said corridor.

In Figures 6 and 7 a modified form of sound shell is shown and isapplicable to small studios.

In this form the sound niche has a straight back Wall 3l and beveledceiling and side lWalls 82 and 33, respectively. The floor,

ceiling and Walls of this modified soundniche are constructed ofresonating Wood and the rigid Walls of the recess around the soundnicheand the floor of same are iinished with a smooth sound reflectingsurface.

The illustrations show a rectangular room but a studio constructed alongthe lines herein set forth may be oval shaped or circular in plan, inlwhich case :the sound niche may be placed at anyipoint in the, Wall.-Furtlier the ceiling may be boweled or of any desired shape or -contourprovided same is insulated againstsound reflection.

Various modifications may be employed in this invent-ion Withoutdeparting from the "spirit and scope of saine and it is thereforenotintended tolimitsaid invention to the particular yembodii'iientsshown and described.

:fVhat isclaimed: a, y ff I. ,1. A sound studio for picking up andconverting sound impulses forA recordingand vradio broadcastingpurposes, a compartment, the floor, walls and ceiling ofwliiclraredamped against sound reflection, and la recess in said compartment,themfloor, Walls and ceilingof 4which* have sound reflecting surfiLCeS.1.1 j i ,fn-@5, yflrr.-

3Q 2. A sound studio for picking upvand converting sound impulsesfor1recording and radio broadcasting purposes, a' compartment, the.floor, lWalls and ceiling of AWhich are damped against sound reflection,and a soundniche at one side of said compartment constructed toimpartresonance to the jsound impulses. l

3. A sound studio for picking up and converting sound impulses forvrecording and radio broadcasting purposes, a compartment, the floor,Walls vand yceiling .of l,which are damped against sound reflection, arecess in terial and capablevlof. sympathetic sound vibration. A1, I l.A sound studio for picking up and converting sound impulses `forrecording `and radio broadcasting purposes, a compartment, having sounddamped floor, ceiling and Walls, ay recess in said compartment havingsound reflecting floor, Walls and ceiling, a sound reflecting niche insaid recess, and a .resonating chamber around said sound reflectingniche. l 3 vv.: .I ,jg A

. 5. The sound studio of lclaim l, including an air inlet and airoutletconnecting With air passages, and having baffles interposed insaid air passages, the said sides of said air passages and said bafflesbeing covered with sound absorbing material. y

6. The sound studio of claim 2, including an air inlet and air outletconnecting with air passages and having baffles interposed in said airpassages, the said sides of said air passages and said baliles beingcovered with a sound absorbing material. p

7. The sound studiol of claim l, wherein corridors are provided alongone or more sides of said compartment, openings Jfrom the corridor tosaid studio and outside, staggered partitions forming baes in saidcorridor; the said corridor and battles being covered With soundabsorbing material.

8. The sound studio of claim 2, wherein corridors are provided along oneor more sides of said compartment, openings from the corridor to saidstudio and outside, staggered partitions forming battles in saidcorridor; the said corridor and battles being covered With soundabsorbing material.

9. The sound studio of claim l, including an air inlet and an air outletconnecting With air passages, and having baiies interposed in said airpassages, the sides of said air passages and said baiiies includingsound damping material;

10. The sound studio of claim 2, including an air inlet and an airoutlet connecting With air passages and having battles interposed insaid air passages, the sides of said air passages and said baiilesincluding sound damping material.

1l. The sound studio oi claim l, wherein corridors are provided alongone or more sides of said compartment, openings from the said corridorsto said studio and outside, staggered partitions forming baffles in saidcorridors; the said corridors and bales including sound dampingmaterial.

l2. The sound studio of claim 2, wherein corridors are provided alongone or more sides of said compartment, openings from the said corridorsto said studio and outside, staggered partitions forming baliies in saidcorridors; the said corridors and battles including sound dampingmaterial.

13. A sound studio for picking up and converting sound impulses forrecording and radio broadcasting purposes comprising, a compartmenthaving sound damped surfaces, a. sound-niche in said compartment capableot sympathetic sound vibration, and means Within the said compartmentfor picking up sound impulses originating in said soundniche; the saidsound damped surfaces of said compartment preventing reverberation ofundesirable sound impulses originating in said sound-niche.

14. A soundstudio for picking up and converting sound impulses forrecording and radio broadcasting purposes comprising, a compartmenthaving sound damped surfaces, a recess in said compartment having soundreflecting surfaces, and means Within the said compartment for pickingup sound impulses originating in said recess; the said sound dampedsurfaces ot said compartment preventing reverberation of undersirablesound impulses originating in said recess.

In testimony whereof I affix my signature.

SOLOMON S'. SUGAR.

